Got Commentaries?
1. Because it is "the life" of Jesus, the "blood" being used by the sacred writers as representing "life itself," or as containing the elements of life,
Genesis 9:4;
Leviticus 17:14. It was forbidden, therefore, to eat blood, because it contained the life, or was the life, of the animal. When, therefore, Jesus says that his blood was shed for many, it is the same as saying that His life was given for many. See the notes at
Romans 3:25.
Mathew Henry
26:26-30 This ordinance of the Lord's supper is to us the passover supper, by which we commemorate a much greater deliverance than that of Israel out of Egypt. Take, eat; accept of Christ as he is offered to you; receive the atonement, approve of it, submit to his grace and his government. Meat looked upon, be the dish ever so well garnished, will not nourish; it must be fed upon: so must the doctrine of Christ. This is my body; that is, spiritually, it signifies and represents his body. We partake of the sun, not by having the sun put into our hands, but the beams of it darted down upon us; so we partake of Christ by partaking of his grace, and the blessed fruits of the breaking of his body. The blood of Christ is signified and represented by the wine. He gave thanks, to teach us to look to God in every part of the ordinance. This cup he gave to the disciples with a command, Drink ye all of it. The pardon of sin is that great blessing which is, in the Lord's supper, conferred on all true believers; it is the foundation of all other blessings. He takes leave of such communion; and assures them of a happy meeting again at last; Until that day when I drink it new with you, may be understood of the joys and glories of the future state, which the saints shall partake with the Lord Jesus. That will be the kingdom of his Father; the wine of consolation will there be always new.
Matthew 26:28 This is my blood of the covenant, which is poured out for many for the forgiveness of sins.
I have never seen a commentary where the wine and bread are said to be literal blood and flesh. This symbolic interpretation is the only one that makes any sense at all and is consistent with the biblical narrative. When he said this he was still alive and so his blood and flesh sacrifice hadn't happened yet so it could not have been literal. This is a case of intent determining content. You want to find distasteful issues with the bible and so you make sure you do so even though they make no sense at all.